Window frame and sash



No. 6|2,22l. Patented Oct. ll, I898, G. c. WITT & c. H. AMANN.

WINDOW FRAME AND SASH.

(Application filed Mar. 9, 1898.)

(No Model.)

Milan/B55115 DIIIEJIITLZRE' Mai W W @WW OL|THD.. WASHINGTON a c NITEDSTATES ATENT OFFICE.

GEORGE C. VVITT AND CHARLES H. AMANN, OF CINCINNATI, OHIO.

WINDOW FRAME AND SASH.

SPECIFICATION forming part of Letters Patent No. 612,221, dated October11, 1898.

A li ti fil d March 9, 1898. Serial No. 673,229. ,No model.)

To all whom it may concern..-

Be it known that we, GEORGE O. WITT and CHARLES H. AMANN, citizens ofthe United States, and residents of Cincinnati, in the county ofHamilton and State of Ohio, have invented certain new and usefulImprovements in indow Frames and Sashes,of which the following is aspecification.

The object of the invention is to provide a practically fireproof windowwhich will 0b- Viat-e the necessity of using iron or iron-linedfireproof shutters, which when closed for protection prevent any firethat may occur in the building from being observed from the outside.This object is attained by the means illustrated in the accompanyingdrawings, in

connection with which the invention will be first fully described andthen particular-l y referred to and pointed out in the claims.

Preliminary to a general description of the drawings and in order to geta clearer under standing of the invention at the outset, it may bestated that the window frame or casing and sash are preferably made ofsheetmetal, for economy and strength formed up in the manner hereinafterdescribed, and the sashes fitted with what is known as wired glass,which experimental tests have demonstrated will stand a high degree ofheat without being fractured to such an extent as to admit air to feedan incipient fire, and which in case of fire may be easily chopped orbroken out by the fireman to turn a stream of water or otherextinguishing fluid on the fire.

Referring to the drawings, in which like parts are indicated by similarreference-letters wherever they occur throughout the various views,Figure 1 is a sectional perspective View of a Window frame and sashembodying the invention. Fig. 2 is atop or plan view of the same. Fig. 3is a transverse sectional view, upon an enlarged scale, through one ofthe side stiles of the sash. Fig. at is a view, upon the same scale asFig. 3, in transverse sectional View through the upright stile of theframe or casing. Fig. 5 is a detail View illustrating the miter-jointuniting the vertical and transverse stiles of both frame and sash. Fig.6 is an enlarged detail view, in transverse section, through themeetingrails of the sashes shown in Fig. 1.

Referring to the parts, the body of the side stiles or uprights of theframe A'is formed of a single piece of sheet metal, for cheapnesspreferably of galvanized iron or soft steel, as clearly shown in Fig. 4.Beginning at the outside end, which is embedded in the brickwork, thedifierent bends will be described insuccession from that portion to theend of the inside stile or facing. The first bend (1 forms an angle withthe end of the sheet and the rectangular portion which extends to thebend a. The rectangular space between the end and angle a receives thebrickwork which embeds the frame, and the straight part of the angle aforms the outer facing of the stiles. The metal from the angle a isinclined inwardly in a straight line, as shown, but may be in a curvedline, if desired, to the angle a from which it extends in a line atright angles to the window-openin g and returns upon itself at a makinga double loop to the angle a and extending beyond it to the angle athence in a right-angle bend to the angle a and at. a right angle fromthat point to the angle a, forming a dividing-bead a against which theadjacent edges of the sash bear. From the angle a the metal is returnedat a right angle to the angle a and from thence at a right angle to theloop a, which is similar to the loop a From this loop the metal sheet isreturned to the angle a thence in a diagonal line to the angle a, and ina line from a parallel with the face of the wall to the end of thecasing, forming the inside facing 0:

B are the removable'moldings or strips which form the outer and innerguides for the sashes and retain them in their seats. These moldingshave a bend at b, the part from the end of the strip to the angleforming the guide for the sashes. From thence the metal inclines to theangle 1) and thence The pockets or chambers for the balanceweights D areinclosed at the ends of the stiles by a sheet-metal partition E, whichhas return-bends e at the ends and e in the center. The end returns areto slip over the inner ends of the casing, and the return-bend e is toreceive the dividing-partition e ,which extends inwardly to thedividing-strip of the sashes a and is bent around parallel to the innerwall of the dividing-strip to retain it in position. The ends of theseupright stiles are .miter'ed to meet the-top stile and sill of thewindow-frame, and to the inner walls are riveted pulley-boxes D, therivets passing through the outwardly-projecting flanges of theguide-pulley box.

The top stile F of the window frame or casing is formed of a singlepiece of sheet metal bent around, as clearly shown in Figs. 1 and 2, toform upon its under side grooves f for the sashes and the dividing-beadf between the sashes. The ends of the top stile are made to extend overthe inner ends of the side walls, and the inner and outer Verticalfacings have also projecting ends,which form extensions when the miteredjoints are stamped down to pass back of the exposed facing-strips of theupright stiles A, the mitered joints being connected by rivets, asclearly shown in Fig. 5. The ends of the inner or lower walls of thestile F also extend beyond the inner walls of the uprights and are bentdown over the sash-pockets and the inclined portion of the outerfacing-strips to make a tight joint, the parts bending over thesash-pockets being riveted for additional strength. The top stile isalso strengthened by bridges fiwhich are also made of a U-shaped pieceof sheet metal, the lower edge of which is formed counter to the upperside of the stile and the upper edge passed under the inturned flanges fof the top stile, the parts being united by solder.

The sill G of the window-frame is formed of a single piece of sheetmetal having the inturned bends g at each end to form a base, which bendat a right angle to form the inner facing g and the outer facing 9 Theinner facing g is returned to form the inner seat 9 for the sash andagain returned at a right angle to form the seat 9 upon which the lowerflanged ends of the inner sash rest, and from this point to the outerfacing g inclines downwardly, forming the watershed The inner and outerfacings of the lower sill have their ends stamped up to form a miter,leaving the proiec tinge end to.

pass under the facings of the uprights, to which they are riveted, thesame as the upper stile F.

The upright and cross stiles of the windowsash are formed of a singlepiece of sheet metal, as clearly shown in Fig. 3, the side stiles Hdiffering only from the cross-stiles in that one or the other has itsmitered joint stamped up, leaving the projecting end to pass under thesquare'cut-off miter of the opposite stile to receive the rivetswhichframe them together in forming up the molding for the stile-piecesor frame. The outer edge h has an upturned end 72/ at one end andasimilar return-bend 72/2 at the opposite end. The metal from this pointextends in a straight line to the angle h from which point it diver esto the return h, which furnishes the seat or back for one edge of theglass plate J. It then returns in a line parallel to the outer edge,forming a loop I? to the angle h, from which it returns in a diagonalline to the angle W, and from there to the outer edge, looping over theend h and forming the guidebeads,which slide in the grooves formed inthe casing and reduce friction between the parts.

The removable molding-strips K, which hold the glass in place, consistof an anglemolding having its short angle to bear against the face ofthe glass, its long angle bear against the inner wall of the sash-frame,and thence loop over the return at 71 the molding being held in place bythe screw-bolt C.

To the outer wall of the upper or meeting rail of the lower sash issecured a strip or molding H, as clearly shown in Figs. 1 and 6. Thishas a loop h ,which terminates in a rectangular box- 7L9, having aflange h projecting down from it, by which the strip is secured to themeeting-rail. The box It projects far enough from the sash-frame tocontact with the glass-holding strip K on the meeting-rail of the uppersash to make a practically close joint when the sashes are closed, asshown in Figs. 1 and 6.

We have shown our invention in what we believe to be its simplest andbest form; but it is obvious that it would be an inferior modificationto make the same structure of separate parts and unite them in a mannerwell known to the trade, and it is also obvious that many meremechanical changes may be made without varying the spirit or scope ofthe invention, and we therefore do not desire to be limited to the exactconstruction shown.

Vhat we claim is 1. In a window-casing the combination of the uprightand transverse stiles, each formed from a single piece of sheet metal,having overlapping mitered corners, and the laterally-projecting loopstoreceive the sash-holding molding, substantially as shown and described.

2. In a window frame or casing the combination of the frame-body havingits vertical and transverse stiles formed of a single piece 7 theupright stiles the bodies of which are formed of a single piece of sheetmetal forming the balance-Weight chambers, the back plate to close theback of said chambers, and a partition dividing the chambers intoseparate pockets, substantially as and for the purpose set forth.

4. The combination of the sheet-metal window frame or casing havingsash-receiving seats, the removable strips to hold the sash in place,the sash-frame having its stiles each formed of a single piece of sheetmetal and framed together by lapped miters, and the removablemolding-strips to hold the glass in place, substantially as shown anddescribed.

GEORGE C. WITT. CHARLES H. AMANN.

Witnesses:

WALTER F. MURRAY, GEO. J. MURRAY.

